I guess that it depends on whether you want a mid drive system or a hub drive system.
If it's a mid drive then perhaps the Macina Race plus, as already mentioned.
http://www.shop.flidistribution.co.uk/p/2015-ktm-macina-race-plus?pp=12
Or the KTM Macina Action Plus
http://www.shop.flidistribution.co.uk/p/2015-ktm-macina-action-plus?pp=12 (I haven't looked to see the spec differences)
If it's hub drive, then as Wicky has suggested either the eRace P 29 or the eRace P 27. I rate this bike enough to be buying one myself, to go along side the Bosch powered Macina Lycan full suspension bike.
I've opted for the 27.5, but part of me thinks that I should have maybe given the 29 a shot. The reason being that when out on an organised mtb event last year, I rode with three other KTM riders, one of whom was on a Myroon 29er. Between us, we did several rolling tests, just to see if the Myroon had the legs to pull away on the gentle slopes of the road sections. Without fail, it crept away and surprisingly quickly as well. I know that the 29er isn't supposed to be as nimble on tighter sections, but I certainly didn't notice any difference.
Each of us is going to have our own preference towards bike brand, and bike brand loyalty, and I can only suggest that you look to see what dealers in your area are offering, short list a few bikes, then look at the components for each bike, versus the cost against other manufacturers offerings. Also look at the overall bike weight.
I felt that KTM ticked the boxes on all counts for me, so went in that direction. Someone else will feel just the same way about Scott, Haibike etc.
If you are considering 'proper' off road use, don't consider buying anything from the BH range. They might be fine for getting you to shops (possibly not back though) and that is all.
If you are near enough to me, I'll happily take you out for an off road ride when the next bike arrives, and you can then try both motor options to see what might suit your needs the best. Both have their plus and minus points, and despite what some on here might say, it isn't a clear cut thing of one being better than the other.